She genuinely has the biggest heard on anyone I've ever met
I don't know if that's good or not, but it sounds like you've got a good one.
horrendously jealous and very materialistic
Can't women of all nationalities be the jealous type? Take it as a complement. Polish women tended to be less materialistic than those in some other European countries, but the mass media and advertising are changing that. I'm fortunate to have a very thrifty Polish missus. When I told my brother that she didn't like gold, he just stared at me and said, "You lucky bastard!"